Duffield David A: insider trades.
Duffield David A reported 78 non-derivative transactions on 10 SEC ownership filings in Q3 2026: 0 open-market purchases and 68 sales ($172.6M), across 1 company.
- Transactions
- 78
- Purchases (P)
- 0
- Sales (S)
- 68
- Companies
- 1
- Name as filed
- DUFFIELD DAVID A
Companies
| Company | Relationship | Transactions |
|---|---|---|
| Workday, Inc. (WDAY) | TenPercentOwner | 78 |
Transactions
| Date | Company | Code | Shares | Price | Owned after | Filing |
|---|---|---|---|---|---|---|
| 2026-09-28 | Workday, Inc. | S | 23,095 | $189.84 | 108,953 | Form 4 |
| 2026-09-28 | Workday, Inc. | S | 3,904 | $190.6 | 105,049 | Form 4 |
| 2026-09-28 | Workday, Inc. | C | 98,971 | $0 | 204,020 | Form 4 |
| 2026-09-28 | Workday, Inc. | S | 2,000 | $182.67 | 202,020 | Form 4 |
| 2026-09-28 | Workday, Inc. | S | 3,496 | $183.88 | 198,524 | Form 4 |
| 2026-09-28 | Workday, Inc. | S | 1,904 | $184.67 | 196,620 | Form 4 |
| 2026-09-28 | Workday, Inc. | S | 1,700 | $185.78 | 194,920 | Form 4 |
| 2026-09-28 | Workday, Inc. | S | 1,100 | $186.8 | 193,820 | Form 4 |
| 2026-09-28 | Workday, Inc. | S | 23,779 | $188.13 | 170,041 | Form 4 |
| 2026-09-28 | Workday, Inc. | S | 37,993 | $188.94 | 132,048 | Form 4 |
| 2026-09-23 | Workday, Inc. | S | 1,875 | $193.62 | 105,049 | Form 4 |
| 2026-09-23 | Workday, Inc. | S | 2,324 | $188.92 | 202,338 | Form 4 |
| 2026-09-23 | Workday, Inc. | S | 1,776 | $189.69 | 200,562 | Form 4 |
| 2026-09-23 | Workday, Inc. | C | 99,613 | $0 | 204,662 | Form 4 |
| 2026-09-23 | Workday, Inc. | S | 4,849 | $190.95 | 195,713 | Form 4 |
| 2026-09-23 | Workday, Inc. | S | 24,934 | $192.84 | 106,924 | Form 4 |
| 2026-09-23 | Workday, Inc. | S | 63,855 | $192.1 | 131,858 | Form 4 |
| 2026-09-18 | Workday, Inc. | S | 12,029 | $195.73 | 105,049 | Form 4 |
| 2026-09-18 | Workday, Inc. | C | 94,089 | $0 | 199,138 | Form 4 |
| 2026-09-18 | Workday, Inc. | S | 34,859 | $194.04 | 164,279 | Form 4 |
| 2026-09-18 | Workday, Inc. | S | 47,201 | $194.91 | 117,078 | Form 4 |
| 2026-09-15 | Workday, Inc. | S | 17,487 | $191.63 | 158,944 | Form 4 |
| 2026-09-15 | Workday, Inc. | S | 3,868 | $194.39 | 105,049 | Form 4 |
| 2026-09-15 | Workday, Inc. | S | 23,875 | $193.57 | 108,917 | Form 4 |
| 2026-09-15 | Workday, Inc. | S | 26,152 | $192.73 | 132,792 | Form 4 |
| 2026-09-15 | Workday, Inc. | S | 25,163 | $190.71 | 176,431 | Form 4 |
| 2026-09-15 | Workday, Inc. | C | 96,545 | $0 | 201,594 | Form 4 |
| 2026-09-10 | Workday, Inc. | C | 100,780 | $0 | 205,829 | Form 4 |
| 2026-09-10 | Workday, Inc. | S | 27,883 | $184.33 | 177,946 | Form 4 |
| 2026-09-10 | Workday, Inc. | S | 23,551 | $184.98 | 154,395 | Form 4 |
| 2026-09-10 | Workday, Inc. | S | 24,465 | $186.26 | 129,930 | Form 4 |
| 2026-09-10 | Workday, Inc. | S | 22,388 | $187.05 | 107,542 | Form 4 |
| 2026-09-10 | Workday, Inc. | S | 2,493 | $187.75 | 105,049 | Form 4 |
| 2026-09-04 | Workday, Inc. | S | 13,666 | $195.81 | 181,998 | Form 4 |
| 2026-09-04 | Workday, Inc. | C | 90,615 | $0 | 195,664 | Form 4 |
| 2026-09-04 | Workday, Inc. | S | 600 | $204.05 | 105,049 | Form 4 |
| 2026-09-04 | Workday, Inc. | S | 600 | $201.75 | 105,649 | Form 4 |
| 2026-09-04 | Workday, Inc. | S | 224 | $200.59 | 106,249 | Form 4 |
| 2026-09-04 | Workday, Inc. | S | 7,631 | $199.91 | 106,473 | Form 4 |
| 2026-09-04 | Workday, Inc. | S | 30,048 | $198.87 | 114,104 | Form 4 |
| 2026-09-04 | Workday, Inc. | S | 31,605 | $198.11 | 144,152 | Form 4 |
| 2026-09-04 | Workday, Inc. | S | 6,241 | $196.73 | 175,757 | Form 4 |
| 2026-09-01 | Workday, Inc. | S | 4,036 | $197.38 | 195,974 | Form 4 |
| 2026-09-01 | Workday, Inc. | S | 36,729 | $198.29 | 159,245 | Form 4 |
| 2026-09-01 | Workday, Inc. | S | 35,196 | $199.01 | 124,049 | Form 4 |
| 2026-09-01 | Workday, Inc. | S | 100 | $204.92 | 105,049 | Form 4 |
| 2026-09-01 | Workday, Inc. | S | 4,100 | $201.4 | 115,149 | Form 4 |
| 2026-09-01 | Workday, Inc. | S | 1,901 | $202.4 | 113,248 | Form 4 |
| 2026-09-01 | Workday, Inc. | S | 6,199 | $203.4 | 107,049 | Form 4 |
| 2026-09-01 | Workday, Inc. | S | 1,900 | $204.28 | 105,149 | Form 4 |
| 2026-09-01 | Workday, Inc. | C | 94,961 | $0 | 200,010 | Form 4 |
| 2026-09-01 | Workday, Inc. | S | 4,800 | $200.14 | 119,249 | Form 4 |
| 2026-07-09 | Workday, Inc. | S | 100 | $138.98 | 105,049 | Form 4 |
| 2026-07-09 | Workday, Inc. | S | 500 | $134.01 | 207,149 | Form 4 |
| 2026-07-09 | Workday, Inc. | S | 14,299 | $135.48 | 192,850 | Form 4 |
| 2026-07-09 | Workday, Inc. | S | 27,858 | $136.41 | 164,992 | Form 4 |
| 2026-07-09 | Workday, Inc. | S | 39,133 | $137.19 | 125,859 | Form 4 |
| 2026-07-09 | Workday, Inc. | S | 20,710 | $138.34 | 105,149 | Form 4 |
| 2026-07-09 | Workday, Inc. | S | 1,800 | $132.07 | 209,349 | Form 4 |
| 2026-07-09 | Workday, Inc. | S | 1,400 | $130.63 | 211,149 | Form 4 |
| 2026-07-09 | Workday, Inc. | C | 107,500 | $0 | 212,549 | Form 4 |
| 2026-07-09 | Workday, Inc. | S | 1,700 | $133.12 | 207,649 | Form 4 |
| 2026-07-06 | Workday, Inc. | S | 7,953 | $132.73 | 177,592 | Form 4 |
| 2026-07-06 | Workday, Inc. | C | 107,500 | $0 | 212,549 | Form 4 |
| 2026-07-06 | Workday, Inc. | S | 2,106 | $129.82 | 210,443 | Form 4 |
| 2026-07-06 | Workday, Inc. | S | 13,550 | $130.81 | 196,893 | Form 4 |
| 2026-07-06 | Workday, Inc. | S | 11,348 | $131.79 | 185,545 | Form 4 |
| 2026-07-06 | Workday, Inc. | S | 100 | $138.3 | 105,049 | Form 4 |
| 2026-07-06 | Workday, Inc. | S | 2,476 | $133.99 | 175,116 | Form 4 |
| 2026-07-06 | Workday, Inc. | S | 7,098 | $134.65 | 168,018 | Form 4 |
| 2026-07-06 | Workday, Inc. | S | 3,417 | $135.8 | 164,601 | Form 4 |
| 2026-07-06 | Workday, Inc. | S | 15,869 | $136.9 | 148,732 | Form 4 |
| 2026-07-06 | Workday, Inc. | S | 43,583 | $137.75 | 105,149 | Form 4 |
| 2026-06-30 | Workday, Inc. | S | 31,354 | $122.73 | 105,049 | Form 4 |
| 2026-06-30 | Workday, Inc. | S | 53,176 | $122.17 | 136,403 | Form 4 |
| 2026-06-30 | Workday, Inc. | S | 16,870 | $121.06 | 189,579 | Form 4 |
| 2026-06-30 | Workday, Inc. | C | 107,500 | $0 | 212,549 | Form 4 |
| 2026-06-30 | Workday, Inc. | S | 6,100 | $120 | 206,449 | Form 4 |
Questions
What stock did Duffield David A buy or sell?
Duffield David A reported 78 non-derivative transactions on 10 SEC ownership filings in Q3 2026: 0 open-market purchases and 68 sales ($172.6M), across 1 company.
Is Duffield David A the same person as other filers with this name?
This page covers SEC CIK 938071 only. The SEC assigns each reporting owner a CIK, and people with the same name have different CIKs.
Source: SEC Insider Transactions Data Sets, Q3 2026. Reported as filed; we do not assess intent, performance or compliance. All filings for this CIK on SEC.gov.
Plain-text version for agents and LLMs: /insiders/duffield-david-a-938071.md
Independent. Not affiliated with, endorsed by, or sponsored by the U.S. Securities and Exchange Commission. Data is reproduced from public SEC filings and datasets. Not investment advice.